Cultivator



C. J. ALLEN.

CULTIVATOR.

APPLICATION FILED APR. 6. 1921.

1,425,932; Patented Aug. 15, 1922.

4 SHEETS-SHEET I.

g 1- 1 f I: f

' ii -T ll MENTOR WMr/W HTTORNEYS -C.J.ALLEN.

CU LTIVATOR.

APPLICATION FILED APR. 6, 1921.

C. J. ALLEN.

CULTIVATOR.

APPLICATION FILED APR. 6. 1921.

1,425,932,' PatentedAug.15,1922.

4 SHEETS-SHEET 3,

INVENTUR oHAnLn-s a. ALLEN, or Moonnsrown, NEW JERSEY,,.ASSIG1\TOR- res. n- 'annnnaxooe,

INC A'CORPGEA'I'ION OF PENNvQYLVANIAQ onnriva'ron incense,

Application filed A ril c,

1 '0 all whom it may concern I Be it-known' that I, Cit-mums J. ALLEN, a citizen of the United States, andawresident of Moorestown, in the county ofBurlington and State of New derse'yghave invented cer-y tain new and useful Improvements in Cultivators, of which the following isa specificaing drawings. 7 v j The invention relates to two-row culti-v tion, reference being had to the acconipanye vators, that is, Cultivators adapted for the cultivation of the ground adjacent three rowsof plants, the cultivation being siinultaneously performed on both sides of the center row and on the adjacent side of each of the two outer rows, a principal ob ect of the lnvention being to provide a machine of i this characterparticularly suitable for use in connection with. a'farm tractor of the unstable type, that is, one embodying a pair of wheels and a rearwardly extending beam laterally movable with respect thereto and to which the cultivator is secured when in operation, although the use of the cultivator hereinafter described is not confined to a tractor of that character as any other suitable source of motive power may be eni.- ployed for drawing the cultivator over the ground. With this end in view the cultiv a tor is so designed and the various elements thereof arranged so that! the draft ed to the bars to which the Working toolsare attached substan ally'in the horizontal plane of the bars and in their direction of movement the machine is drawn over the ground, thus obviating the tendency of the forwardly positioned tools to dig into and the rcarwardly positioned tools towork out of the ground which occurs when the draft is imparted to the gang bars in a. direction other, than substantially in the plane in which they intendedto move forward when'the machine is inoperation In the present invention by reason of the aforesaid manner of imparting" draft to. the gang bars the proper positioning of the latter is insured at allti nes'and in consequence the. desireda'dj sted depth of out. of

all of the ground working tools properly maintained under 0 rative condit ons.

The invention further contemplatesthe provision in cultivator of the general, character aforesaid of means under as control. of the operator for iHCfO Sl11g ..l decreas; ing the distance betweenthe members of ing of the invention.

- Specification of Letters Batent. v Pa tjfintied 'A iig. l5,

1921. Serial- No. 459 ,0481

each'tool carrying gang, means for raising and preferably foot and loweringv the gang controlled meanswhereby both gangsinan of their adjusted positions be shifted to the right or left as desired so that 'by v increasing or decreasing the distance between the membersof e ac'h gang the by each gang maybe regulated while the inachine'is in motion to suitlthe require.

ments of varyin'ggows' while by suitable manipulation of the foot controlled means in combination therewith; the operator area covered enabled, to cause "the gangs to} follow anym i sinuosities or curvatures in the turning the tractor from its general direc tlon of travel across the field, The invention "further includes the provision of means for effecting vertical adjustment of "the for.

Ward ends of the gangb-ars for regulating the'depth of out of the forward tools and their angle of entrance into the sojilto'better adapt the'machinefor use under varying conditions encounteednpractlce. v Other ob ects of the lnvention" comprise variousimprovements in the-form and construction' of cultivating machines of this general character designed to render'the nae-- chine as a whole both simple and'durable in constructiom-effective in operation and capable of a wide rangeof adjustment to facilitateuse'offthe machine under different 0perative conditions, said improvements, to-

rows' without gether with other, novel objects and features of construction and arrangement, being hereinafter more particularly disclosed and claimed.

lV'hile in carryingout the objects of the I invention such instrumcntal tiesand CO111l31-" nations thereof may be employed are ef fective for accomplishing" the results de-' sired in the ace-om jan inn". draw'vin isshown 7 l l; Z:

a preferred embodiment of means particu-' larly adapted for that purpose, and as the preferred form of the invention illustrated is more particularly intended for. utilization in connection with a farm tractor, I have, in

the said drawings, shown in broken lines such parts of a typical tractor as mavbe of assistance in-obtaining a proper under standthereby desiredor inten jl'ed to in any way limit the employment of our improved cultij ,vator with any partlcular form of tractor l lmvever, it is not of construction.

shown in 1 eel n parts being removed for the sake of clearness, and Fig.

3 is a front elevation thereof also with certain parts broken away or removed for the sake of clearness. Figs. a, 5 and 6 are respectively enlarged fragmentary views partially in side elevation and partially in vertical section illustrating certain details Like numerals are used todesignatethe same parts in the several views, and as the machine is substantially with respect to its center line and comprises certain corresponding .ments on both sides thereof, such ments have, as far as possible, been'identh cally numbered with the addition of a prime where such elements are on the left hand side of the center line of the machine when viewed as in Fig. 3. s: t will therefore be understood that whenv in the following description a given part is referred to by its number as, for e-nainple,"l2", it is not thereby intended to designate only that part on the left hand side of the machine but the corresponding part, if any, upon the right hand side thereof as well.

Referring now more particularlyto drawings, the form of the invention ti in shown comprises a main frame hav. a transversely extending front'lneniber and rearwardly and u'pww llv, crate :lir 1; side members 2, which.

ele-

directed in wardly at their rearinost er-ztremities and secured to a transversely extending roar member Preferably an additional rear member lis provided to. en nd transversely of the machine in the rear of and a-cen't the member 3, being bolted thereto and separated therefrom by means of bolts and spacer sleeves 6, the several parts being so arranged that the member 1 is normally somewhat below the level of the members 3 and l. Braces 7 may also be disposed.

between the front and rear members to.

irdlv .i wheels when mounted. thereon are given a ele-i slight camber in a vertical. plane and also t e in slightly toward the front. Extend ing upwardly and forwardly from the outer end of each a eis brace 15 secured to the axle outside or the collar 13 and to the member l of the frame, while a substantially similar brace 16 extends upwardly and forwardly from the inner end of each axle SEC portions 23,the central portion 21 being positioned aljacent the frame member 1.

Lateral movement of this yoke, through themedium of mechanism hereinafter dosoribed, is effecti e in the operation of the cultivator, to sh ft the gang bars to the right or left when desired. For supporti g; the yoke; and otl er pa carried thereby as hcreinafer described, two slide bars are provided, each of these bars being preierably formed from f a'ic having'a longi udinally exten 25, vertica ly downwz V Y :i and a reversely tr inwardly lir cted end??? which lies 1 i :th in the plane of the portion i e these slide bars is positioned above fron'i each of the laterally l portions of the yolre 20, the i tiie slide bar being secured cent the vertically tending portion of the yoke in any convenient manner, as by L- shaped clip 29 bolted to the slide bar and to the yolre, so that the portion of the slide bar will lie in substai'itiali gr horizon tal plane approxinii ely parallel to the s i i JlljiLCGllb laterall directed portion oi th yolze and with its greatest width in ski .J in swig. lane. .1518 veiticaliy extending poi on 26 of each slide bar is preferably slilen enlarged midway between its ends so as to N form boss 30 in which is provided an aperture for the passa of the adjacent end of the yoke thus fo ning a support there for. It will be apparent, therefore, that the slide bars are opera movable with the yoke.

For supporting the weight bars yoli'e from the" frame suitable means are provided, preferablycomprising hangers 39 conveniently formed of flat stocl t bent, to substantially ifshape and having their free ends rigidly secured to the frame member 1 in such position that the opposite end each support will lie above and adjacent one of the slide bars, and to each supher conveniently in the form. of a ively fixed to and 7 cf the slide by suitable',- preferably foot controllech means are provlded, said means comprising, in the form of the invention illustrated, a pair of rearwardly extending brackets 38 suitably secured to any convenient portion of the main frame such as the member 4 and von opposite sides of the center line of the machine, to each of which is horizontally pivoted a downwardlydepending link 39 preferably composed of a pair of complementary members located one on each side of the supporting bracket,.ea ch pair of said members adyacent their lowerends being directed rearwardly for a short distance and receiving between them the forward ends to of a stirrup 41. Each stirrup preferably comprises a pair of complementary side members adapted to receive between their rearmost extremities a foot rest 42; the members being drawn in at their front ends to contact with each other and 'enga'gebetween the members of oneof the links 39 to which they are secured by a horizontal pivot bolt 43 passing through the lower ends of the members forming the adjacent linkand through the stirrup, while extending forwardly from each of the links and conneeted thereto by a bolt 44 is another link 45.v The rear end of each of these links 45 is positioned above the forward part of the adjacent stirrup in such manner that when the rear end of the stirrup is depressed the forward end thereof will be forced against the under side of the link as best shown in Fig. 2. The forward end of each of the links 4-5 is connected to one of the arms of a substantially horizontally positioned yoke 47 having a centrally forwardly proje'cting extension 48 pivoted preferably adjacent the frame member 1 on the center line of the machine. The, pivoting' means for this yoke may be arranged in any suitable or convenient manner preferably by providing a bracket 49 bolted to the frame member 1 and serving; to support a pivot bolt 50 which passes throughthe extension 48' of the yoke, this ektension being preferably doubled over on itself so as to receive a portion of the bracket as best shown in Fig". 2;

Inorder to provide means for adjusting,

the position of the stirrups, the forward end of each of the links 45 may preferably be provided with a plurality of holes 52 for thereception of the pivot bolt- 53 which secures itto-the yoke so that by selecting a suitable hole for the passage of the bolt the length of the-link maybe adjusted so as to bring the adjacent stirrup into different positions. The yoked? is also provided with a rearward-1y extending arm 55 the outer end of which is eonnectedby a short, transversely d1sposed link 56 with the'rearend of a forwardly extendingarm 57 positioned on the left of the center lineof the machine and secured'adjacent its forward end to the port1on21of the yoke 20. Another arm 58 maybe secured to the same portion of the yoke on the opposite side of the center line of the machine and directed rearwardlyand;

thence angularly to the left to'bring its rear end adjacent the arm-57 to whichi-t is rigidly 'secured,' the arrangement being such that the bars 57 and 58 together form a substantially vY-shaped structure secured to theyoke at spacedpoints on opposite sides'of the center :line of the machine movable with the yoke and adapted to communicate there: to, through the medium of the link 56, motion imparted to the yoke l7 about the pivot 50 through the medium of the stirrups 41.

'For' supporting the ground working tools a suitable distance thenagain directed par allel tothe center line of the machine-and finally directed sharply inwardly toward the center of thegang so that when. the tools 63 are adjustably secured to the members by suitable clamps G-Lthe tools are so disposed lnofl'set relation one behind the other as to effect the cultivation of a relatively large area by'each The members of each gang are suitably hinged together at their rearmost extremities preferably through the medium .of hinge'plates 65 and pivot bolts 66, the general arrangement of the gang's and offthe tools carried thereby being well understood by thosefamiliar with the art. Adjacent its forward extremity each outer gang bar is preferably hinged on a hinge bolt 67 vertically disposed between the jaws of a yoke 68 provided at the rear end of a horizontally I disposed, L-shaped slide 69;

while the inner bar of each gang is similarly hinged by a pivot bolt 70 to a yoke Tl pro vided at the rcar cnd of a substantiallysimil lar l.-sliaped member 72; The forward end suitable tool carrying gang bars are pro-, vided and arranged to provide two gangs of each of the members 72 is turned inwardly and rigidly secured, as by bolts 73, to a rear wardly extending flange 74 carried by a col lar 75 which surrounds the laterally directed portion of the yoke 20 and is ordinarily disposed adjacent the vertical portion 22 thereof and prevented from longitudinal movement on the yo re by a clip 7 6 surrounding the yoke and abutting against the collar. The inwardly directed portion of each member 72 may, if desired, be made sufliciently long to provide room for a plurality of bolt holes for the reception of bolts 73 thus permitting lateral adjustment of the bar with respect to the collar by selecting diii'erent holes in the gang bar for the passage of the pivot bolt.

Each of the slides 69, as well as members '72, is preferably formed from a flat bar disposed with its greatest width in the horizontal'plane, the inwardly directed portion of the slide being connected, as by bolts 80, be-.

tween rearwardly directed horizontally disposed flanges 81 carried bya sleeve 82 slidable on the adjacent laterally directed portion of the yoke, the flange and sleeve thus forming a support for the inner end of the slide. Adjacent its outer end, each slide is supported preferably on a pair of anti-friction rollers 85 disposed in parallel relation beneath the slide and carried on the extremities of a piece of heavy spring wire bent to provide axles about which the rollers rotate, Between the forward ends of the rollers the wire is carried forwardly and upwardly over the adjacent portion of the yoke and bent down behind the same so as to contact with the inner edge of the boss 3-0 formed in the vertical portion 26 of the slide bar which latter lies between the portions of the wire passing around the yoke, the wire thus formin clip 86, best shown in Fig. a, carrying the anti-friction rollers 85 at its free ends and atlording a somewhat yielding support to the slide 69 superposed on and movable over the rollers.

Each of the slide bars is connected by suitable means with the axle of the machine disposed substantially in the rear of that slide bar, said means in the form shown comprising preferably flat draft bars and 9.1, the former extending from the upper side of the outer end of the axle to a point near the outer end andon the upper face of the slide bar, and the latter from the inner endof the axle to a point on the upper face and near the inner end of the slide bar, the draft bars being respectively secured to the slide bar by pivot bolts 93 and to the axles by similar bolts 9 1 and 95. Disposed beneath each draft bar 90 is a complementary draft bar 96 which extends anguflarly downward and forward from the under side of the outer end 0" each axle and is then directed horizontally forward so as to contact with the unis d the upper and lower surfaces of which are preferably milled off to form flat parallel bearing faces for the TECGPHOD of the bars as clearly shown in Fig. 2, the upper surface or the inner end of each axle being also prefer-.

ably similarly milled forthe rece ation of the bars 91.

It will thus be seen that as the cultivator is drawn over the ground and the axles thus given a forwarc movement parallel to its surface, a similar movement will be directly imparted through the medium of the draft bars to the slide bars, thence to the lower parts of the yoke and in turn to the bars to move the latter forwardly in (101l6 spondeuce with the progress of the machine, butsince the backward pull on the g2 bars due to the engagement of the tools in the ground is relatively great and sinre the outer members of the gangs are supported adjacent the extremities of the slides 69, it is de sirable to provide means for taking the tlirust of these slides and for holding the latter in proper position, said means preferably comprising an anti-friction roller 100 positioned on a bolt 101 forming a vertical axis for the roller and extending between the draft bars 90 and 96 at such a point as to bring the surface of the roller closely adjacent or in contact with the rear edge of the adjacent transversely directed portion of the slide as most clearly shown in t and the upper and lower ends of the bolt being securely fastened to the draft bars The roller is preferably made of considerable lengtl so that whatever he the vertically adjusted height of the slide with respect there to, contact be etfected.

The height of the rear end of each gang is preferably adjustably controlled through the medium of a hand lever 105 pivoted to a bracket secured to the member or other comenient portion of the frame and cooperative through a suitable latch with a notched quadrant 106'. Each lever is connected throuph a suitablelink 107 with the rear end of'the subjacent gang so'that by elevating or depressing the lever the gang may be raised or lowered as desired, the gang bars during; this operation rotating between the slide and roller may througzh the mediiiun of sleeves 75 and 82 about the laterally directed portions of the suitably interposed between each of the levers and a bracket connected to the frame member 1 for the purpose of counterbalancing to some extent the weight of the gangs while they are being raised.

For the purpose of effecting movement of each of the sleeves 82 along the laterally di-' rected portions of the yoke, suitable means are provided, preferably comprising a hand lever 110 pivoted at a convenient point 111 on the frame and cooperative through a suitable latch with a notched quadrant- 112 by means of which the lever may be latched in any desired position. The forward end of each lever is connected through the medium of a forwardly and downwardly extending linlr 114; with one arm 115 of a three armed lever 116, another arm of which, 117, pivoted to one end of a laterally directed link 119, the opposite end of which is engaged in an eye 120 carried by the flange 81 of the sleeve 82. The third arm 122 of the lever is pivoted adjacent its 6X-- tremity on a pivot bolt 1241 which passes through an aperture positioned at a suitable point in a substantially ll-shaped member 125 which forms a fulcrum for the lever, the arms of the member being secured to the upper face of the adjacent slide bar. Preferably the extremity of the 'arm 122 is bent over on itself so as to embrace the member and the pivot bolt passed through both portions of the arm and the member which lies between them, the arrangement of the various parts being such that movement of the lever 110 about its pivot 111 is'eifective to move the three armed lever 116 about the pivot 12 1 and thus, through the medium of the link 119, move the sleeve 82 along the laterally directed portion of the yoke and,- in turn, the outer gang barof the adja'cent gang laterally inward or outward depending upon the direction'of movement of the lever 110. Preferably the flanges 74 are elevated sufiiciently to permit the members 72 to be secured to their under surfaces while the slides 69 are supported between flanges 81 in a slightly lower plane, and at such height that the inner ends of the slides can, if necessary, pass beneath the inner ends of the members when the former are moved toward the extreme limit of their respective travel toward the center line of the machine.

For the purpose of attaching the cultivator to a tractor or other sourceof motive power in such manner that the draft of the latter will be properly communicated to the cultivator, I preferably provide a pair of inwardly and forwardly directed complementary arms 130, the rear ends of which are pivotally secured to the main frame adjacent the rear ends of the side members 2, the arms being provided with apertures adjacent their forward ends to facilitate their convenient attachment, as by a trans versely extending bolt 132, to the beam A of a tractor or the like. Extending upwardly from the frame member 1 to meet each arm 130 at a point about midway of its length, is a hanger 135 which'isbolted or otherwise rigidly secured to the frame memher and provided with a plurality of apertures 136 adapted for the reception of a bolt 137 by means of which the hanger may be secured to the arm. Tt'Will be evidentthat as the point of attachment of the arms to the tractor is at a relatively fixed height from the ground, by utilizing'difi erent holes in the hangers for the passage of the bolts 137 the height of the forward portion of the frame of the cultivator and in turn, the height of the forward ends of the gang bars above the ground, may be varied within limits, about their point of attachment to the tractor in correspondence with changes in this adjustment and the angular relation between the frame and the-bars alsochanging slightly about the center formed by the ends of the gangs may be adjusted to suit varying operative conditions while," of course, the height of the rear ends thereof may be readily controlled through the levers 105.

The tractor beamA preferably supports a rearwardly extendinghanger B carrying an operators seat C positionedso as to permit the operator to conveniently reach the various control levers of the cultivator and to rest his feet on the stirrups 12; during operation. I H

In'use undernormal conditions the cultis vator, having been suitably coupled to a the arms 130 moving slightly bolts 140. Thus, the height of the forward I the levers 1.10 )endinq onwhich gang it be desired to control. Movement of the lever 110, for example, is operative to cause movement of the three armed lever 116 on its side of the machine about its point of attachment to the memberil25, whatever be the'position of the yoke 20, and conse quent movement of the link 119 to shift the sleeve 82in or out along the yoke therebyv moving the slide to decrease or increase the width of the gang. During this operationthe sleeve 75 remains stationary .onthe yoke so that the gang bar 61 rotates slightly about the pivot 70, the pivot 66 moving to the right or leftapproximately one-half the distance through which the sleeve 82 is moved. In other words, the bolt 6'? moves in or out the same distance as sleeve and the pivot 66 moves in or out one-half that distance.

In the operation of the machine it .18 also frequentl necessary or desirable to shift the gai'igs as a whole to the right or left in order to follow any curvature or sinuosity in the rows of plants, which operation is effected by suitable manipulation of the stirrups ll, ll, pressure on the former serving to shift the yoke and in turn both gangs to the left and pressure on the latter serving to shift them to the right. In effecting the latter movement, for example, the operator presses downwardly and forwardly on the foot rest 42 which brings the forward end of the stirrup forcibly against the rear end of link 45" and simultaneously swings the link 39 forwardly about its pivot. The movement of the link 45 serves to rotate the yoke 47 about the pivot, 50 for an amount.

commensurate with the amount of movement oftbe stirrup, which movement is effective through link 56 and bars 57 and 58 to move he yoke to the right, carrying with it the slide bars and their connected mechanism, the sleeves '75 and 82 and the bars, whatever be the respective adjusted position of the sleeves 82, 82 on the yoke. During this movement of the yoke the draft bars 90, 91 and 96, 91 and 96 swing simultaneously to the right or left the case may be about their points of attachment to the axle, which of course results in moving the slide bars and their attached parts slightly rearwardly from normal position as the draft bars approa'chthe extremities of their swing, but as the actual rearward displacement of the former is very slight owing; to the flatness of the arcs described by the forward ends of the relatively long draft bars, the natural resiliency of the frame work readily compensates for and takes care of the rearward movement referred to.

it will be understood that so long as the pressure is maintained on the foot rest 41-2 the yoke will be retained in the position to which it has been shifted and that upon a release of pressure on the foot rest 42 and application of pressure to the rest as through the medium of the operators left foot, the yoke may be brought back to central position or shifted to the left thereof as may be desired, the operation. of shifing the yoke being readily performed without undue effort as the weight thereof together with that of the attached parts is supported on the anti-friction rollers 25, 25.

It will further be understood that under certain circumstances if the rear ends of the gangs be elevated or depressed considerably above or below the horizontal plane, the rear ed g'cs of he slides 69 will be moved out of contact with the rollers 100 these edges travel in an arc of which the axis of the laterally directed portions of the yoke is the center when the rear ends of the gangs are raised or lowered, and hence, were it not for the flexibility of the framework and play and looseness which is inherent between the parts in all types of agricultural machinery of this general character, the rollers might not under these conditions be effective to perform their sole duty, namely, to take the thrust of the slides, but by reason of the flexibility, play and looseness referred to and the very small distance which the slides are moved away from the roll rs when the gangs are elevated or depressed, it is found in practice that the pull of the gangs is suiiieient in all possible positions of the slides to effect contact of their rear edges with the rollers and thus enable the latter to perform their function.

It will be noted that while for convenience, the operations'of adjusting the-width of the gangs and of shifting them to the right or left have been separately described herein, they may be, and frequently are, simultaneously performed under operative conditions; that whateverlbe the position to which the yoke has been brought through the manipulation of the stirrups, the adjustment of the gangs to increase or decrease their width may be readily effected, and that furthermore the gangs may be freely raised and lowered by the levers and 105 and'the adjustment of the height of the forward ends of the gangs effected when desired through the medium of the hangers 155, 135 without disturbing the adjustment of or cramping; or binding the other portions of the machine, so that the variousmovements, adjustments and operations necessary or desirable for effecting; close, accurate and adequate cultivation of the rows of growing; corn, beets or other plants may be effected easily and. with the requisite precision.

While I have herein described with con-- siderable particularity a preferred embodiment of my invention, I do not thereby desire or intend to limit myself solely thereto as suitable changes and modifications may be made in the form, construction and'ar rangement of the various parts and in their method of assembly without departing from the spirit and scope of the invention as de lined in the appended claims.

Having thus described my invention 1 claim and desire to protect by Letters Patent of the United States:

7 1. In a cultivator the combination with a frame, axles supported below the frame and wheels rotatable on the axles, of a yoke, having' a central portion adjacent the frame,

portions depending downwardly therefrom and laterally outward oppositely directed prising a sleeve slidablc .on the yoke and i slide carried by sa1d sleeve and connected to portions adjacent the ends thereof, means for efiecting lateral movement of said yoke with respect tO'SalCl frame, a slide bar positioned adjacent each of said outwardly di-' wheels rotatable on the axles of aoke hava mg a central portion adjacent the frame, portions depending downwardly; therefrom and laterally outward oppositely directed portions adjacent the ends thereof, means for effecting lateral movement of said yoke with respect to said frame, a slide bar positioned adjacent each of said outwardly directed portions and carried by the yoke, means for supporting each of the slide bars'from the frame comprising alianger, secured to the' frame and anti-friction 'means carried by the hanger-rand positioned beneath the slide bar, a plurality of draft bars extending between each slide bar and the adjacent axle andmovlable with respect thereto on vertical pivots, a plurality oft-tool carrying each having relatively movable members,

adjustable means for supporting the rear end of each from the frame, means for opcratively SUPPOIt-IHgOHG of the members of each gang inlaterally fixed. rela-' tion with respect to the adjacent outwardly directed portion of the yoke, means for movably supporting the other member of the gang from said portion of the yoke comsaid member, means carried by the adjacent slide bar operative to vertically support said slide. and, manually foperablc niicans for moving said sleeve relatively with respect to said yoke to increase or decrease. the width of the gang. 7

In a cultivator the combination with a frame, axles supported below the frame and wheels rotatable on the axles,of a yoke hav ing' a central portion adjacent the frame, portions depending downwardly therefrom and laterally outward oppositely directed portions adjacent the ends thereof, means for effecting lateral movement of said yoke with respect to said frame, slide bar positioned adjacent each of said outwardly directed portions and carried by the yoke, means for supporting each of the slide bars from the frame. comprising a hanger secured to the frame and anti-friction means carried by the hanger and positioned beneath the slide bar, a plurality of draftbars extending between each slide'bar and the adjacent axle and movable with respect thereto on vertical pivots, a plurality of tool carryinggangs each gang having relatively movable members, adjustable means for supporting the rear end of each gang from the frame, means for operatively supportingr one of the members of each gang in laterally fixed relation with respect to theadjacent outwardly (liIGCtQClyPOlflZ-lOH of the'yoke, means for movablysupporting the other member ofthe gang from-said portion'fl ofthe yoke andcomprlsingra sleeve slid-able on the yoke and a slide'carried by said sleeve and connected to said member, anti-friction 7 means carried by said slide bar and vert'i-' cally supporting said slide, means disposed in the rear, of said'slide operative tov sup f port said slide against the pull ofthegang to increase gang.

4:. In a' cultivator the combination of a and manually operable means for moving the sleeve along the yoke. 1n either direction or decrease the width of the'90 frame, an axle supported beneath-the frama a yoke havinga central portion disposed adjacent the frame, downwardly depend;

ing portions and, laterally outwardly; di- I rectedportions adjacent the .ends thereof,

a slide bar carried by said yoke adjacent each outwardly directed portion, means for supporting said slide bars] from said frame, a. gang having relatively, movable members extending rearwardly from each of said outwardly "directed" portions and disposed below the horizonta-l'plane of the axle, means extending between said axle and said'slide .bar operative to A maintain said vbar spaced in front. of said axle, means forsupporting the forward ends of the members of the gcng from the outs wardly directed portion of the yoke and to the'yoke.

f manually operable means for moving Lone The combination with a cultivator havi'ng a frame, an axle supported beneath said frame and a wheel supported, on said axle,

' of means for effecting, a draft-connection tically support said frame from said bar when said bar is operatively connected to the tractor.

6. The combinationwith a cultivator hav ing a frame, an axle supported beneath the frame and a wheel supported on the axle,

of means for effecting a draft connection between the cultivator and a tractor or the like comprising a pair of complementary bars pivoted ad acent'the rear portion of said frame and converging forwardly to a point convenient for attachment to the tractor, and means for supporting the forward portion of said frame in operatively fixed vertical relation with said bars, said means comprising a vertically adjustable hanger extending between the forward portion of the frame and each of said bars, adjustment of said hangers with respect to said bars being operative to effect a movement of said frame with respect to said bars about thei points of attachment thereto as a center. v

8. The combination in a cultivator having a rearwardly extending; tool carryingga-ng having relatively movable members, of

means operative to support the forward end of one of said members, comprising; a slide connected to said member, means for affording vertical support to one end of the slide, means for supporting the other end of the slide and anti-friction means disposed in the rear of the slide and operative to contact therewith to resist the rearward pull of the member when said cultivator is in operation.

9, The combination in a cultivator having a rearwardly extending tool carrying gang having relatively movable members, of means operative to support the forward end of one of said members comprising a laterally movable slide connected to said member, anti-friction means disposed below the slice and operative to afford vertical support thereto, means for supporting the other end of the slide, and anti-friction means eas es lateral movement of the member with re- 1 spect to the frame.

11. ln a cultivator the combination with a frame, an axle supported beneath the frame, a yoke, a slide bar fixed with respect to the yoke and carried thereby, draft bars connecting the slide bar and the axle, means for vertically supporting the slide bar from the frame, a tool carrying gang comprising relatively movable members, means for sup porting said members from said. yoke, and permitting lateral movement of one of said members on the yoke, manually operable means for effecting said movement and foot operated means for effectinglateral movement of the yoke with respect to the frame.

12. In a cultivator the combination of a frame, an axle supported beneath the frame, a yoke, a slide bar fixed with respect to the yoke and carried thereby, draft bars connecting the slide bar and the axle, means for vertically supporting the slide bar from the frame, a tool carrying gang comprising; relatively movable members, means comprisinga pair of sleeves for supporting the forward end of the members of said gang from said yoke one of said sleeves being operably slidable thereon, manually operable means for moving' said sleeve in and out along; said yoke, an L-sha ed slide connectmg said sleeve with one of the members of the gang, means connecting, the other member of the gang with the other sleeve, anti friction means operative to afford vertical support to said slide, and means in the rear of said slide adjacent thereto operative to resist the pull of said when said cultivator is in operation,

In witness whereof, my hand this 2nd day onannns J. ALLEN.

l have hereunto set of April A. D. 1921, 

